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- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
High Temperature Performance Brake Caliper Seal Kit
Upgrade Kit 34mm
1 kit per caliper - 2 required per car
Upgrade and restore your Porsche braking system with this
High Temperature Performance Brake Caliper Seal & Piston Upgrade Kit, specifically engineered for selected Porsche 981 Boxster/Cayman, 718
Boxster/Cayman, 997 and 991 models.
Fits:
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Part of the advanced Performance Range, this premium brake
caliper rebuild kit combines replacement pistons with upgraded high-temperature
sealing components to deliver enhanced durability, reliability, and braking
consistency under demanding driving conditions.
Kit Contents
• 2 x 34mm Pistons
• 2 x 34mm Performance Dust Seals
• 2 x 34mm Performance Piston Seals
• 2 x Bleed Nipples
• 2 x Bleed Nipple Dust Covers
Designed for fast road driving, spirited use, track-day events, and performance-focused Porsche ownership, this kit helps maintain optimum caliper performance when subjected to repeated heavy braking and elevated operating temperatures.
Unlike conventional rebuild kits, the Performance Range incorporates upgraded silicone dust seals and enhanced thermal-resistant piston seals specifically developed to withstand the extreme temperatures generated by modern high-performance braking systems.
Performance Range Key Advantages
High-Temperature Silicone Dust Seals
Performance Range kits utilise premium silicone dust seals instead of traditional OEM-style EPDM rubber dust boots.
Benefits include:
• Exceptional resistance to elevated brake temperatures
• Improved flexibility during repeated thermal cycles
• Increased durability under demanding braking conditions
• Reduced risk of heat-related seal degradation
• Enhanced protection against dirt, moisture, and contamination
Enhanced Thermal-Resistant Piston Seals
The piston seals are manufactured using an upgraded EPDM compound developed specifically for high-performance braking applications.
Advantages include:
• Increased resistance to high operating temperatures
• Improved sealing performance under heavy braking loads
• Enhanced long-term reliability
• Greater resistance to thermal fatigue
• Consistent caliper performance during demanding use
Why Choose the Performance Range?
Modern Porsche sports cars are capable of generating extremely high braking forces, particularly during spirited driving and track use. Standard caliper seals can deteriorate more rapidly when repeatedly exposed to elevated temperatures.
The upgraded materials used throughout the Performance Range help maintain brake caliper efficiency and sealing integrity when exposed to:
• Repeated heavy braking cycles
• High operating temperatures
• Fast road driving
• Track-day environments
• Motorsport-inspired applications
• Performance driving conditions
This makes the kit an ideal preventative maintenance upgrade for Porsche owners seeking enhanced brake system durability and performance.
Ideal Applications
Perfect for:
• Porsche 981 Boxster & Cayman
• Porsche 718 Boxster & Cayman
• Porsche 997 Carrera & Turbo models
• Porsche 991 Carrera & Turbo models
• Fast road driving
• Track-day use
• Motorsport-inspired builds
• Brake caliper refurbishment projects
• Vehicles subjected to repeated heavy braking cycles
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
997403673
The product you are viewing cross references to these numbers
Price is each seal
**Please check the piston size you need as some callipers take two different sizes.
Fits:
Various Models
Price is each seal
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1055955
The product you are viewing cross references to these numbers
Price is for each Piston
*** Please check the piston diameter you need as some calipers take two different sizes. Sizes shown are the piston outer diameter (OD), The height of the pistons is 32mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1055955
The product you are viewing cross references to these numbers
DOT 4
Having an extremely high boiling point and lower viscosity than required, it meets and greatly exceeds regulatory standards. Also suitable for vehicles with ABS.
Vapour Lock formation
This sort of habit leaves room for the Vapour Lock, the formation of vapour bubbles due to boiling of the brake fluid that replace the normal fluid and are compressed, thereby sending the brake pedal to its fill stoke (spongy pedal). The origin is incident in the porosity of the tubes that make up the braking circuit, which in time draw moisture into the fluid, drastically reducing the boiling point. The result is a reduced braking efficiency.
Brembo Premium Brake Fluid
Brembo Premium brake fluids have a higher boiling point that exceeds the standard, thus offering superior resistance to the Vapour Lock and ensuring braking efficiency even at low temperatures. With high anti-corrosion properties and resistance to oxidation, Brembo brake fluid also allows for long-term unaltered chemical/physical characteristics of the fluid in operating circuit; therefore, preserving its integrity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
L040
The product you are viewing cross references to these numbers